Analysis

  • max time kernel
    57s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 22:45

General

  • Target

    10c685530ad6b57443b074c187a43d0eb2cafa98365b6c116e04d9cfe52d2431.exe

  • Size

    512KB

  • MD5

    538643bb08db99584181577b4e1328db

  • SHA1

    bad2352c42141898b8d81046d69cd6bc638d86a6

  • SHA256

    10c685530ad6b57443b074c187a43d0eb2cafa98365b6c116e04d9cfe52d2431

  • SHA512

    2cc265789de227682b7c472ff1319236c7189b4d960e66e8e11172b148711437ab1f0c4647b02fa3bf976af3585f8d947d01a338213d027852f4f39eef00fc18

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4X:0+h9OY70z+warul3E4X

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10c685530ad6b57443b074c187a43d0eb2cafa98365b6c116e04d9cfe52d2431.exe
    "C:\Users\Admin\AppData\Local\Temp\10c685530ad6b57443b074c187a43d0eb2cafa98365b6c116e04d9cfe52d2431.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Users\Admin\AppData\Local\Temp\n1137\s1137.exe
      "C:\Users\Admin\AppData\Local\Temp\n1137\s1137.exe" 647501b38ebc2ce11964980aGvf2JV9vaYVOSWFX2+xVRmWqp2a4y2PR11UnmelsY7xQtRR7O9xVuWVEwfjX+YqRQO2rqTCm1VnV0UZPJy2vwJ5d77E3dMt7AJHUY5Ij9quMoc0TLt9ukWLN9hoa7z3nmrP/mHtMe2fwf8C7Qh4/a3IG /v "C:\Users\Admin\AppData\Local\Temp\10c685530ad6b57443b074c187a43d0eb2cafa98365b6c116e04d9cfe52d2431.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n1137\s1137.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1352-54-0x0000000075071000-0x0000000075073000-memory.dmp

    Filesize

    8KB

  • memory/1840-62-0x000007FEF37D0000-0x000007FEF41F3000-memory.dmp

    Filesize

    10.1MB

  • memory/1840-63-0x000007FEF2730000-0x000007FEF37C6000-memory.dmp

    Filesize

    16.6MB

  • memory/1840-64-0x000007FEFB821000-0x000007FEFB823000-memory.dmp

    Filesize

    8KB

  • memory/1840-65-0x0000000000C56000-0x0000000000C75000-memory.dmp

    Filesize

    124KB

  • memory/1840-66-0x000007FEEDD20000-0x000007FEEEBAF000-memory.dmp

    Filesize

    14.6MB

  • memory/1840-67-0x000007FEF1C50000-0x000007FEF1F3A000-memory.dmp

    Filesize

    2.9MB

  • memory/1840-68-0x0000000000C56000-0x0000000000C75000-memory.dmp

    Filesize

    124KB